Question

please solve this one​

Answer 1

Hey Mate ❤

Things to be calculated

(1) Height

(2) Curved surface area

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Formula to be used :

□ Volume of Cylinder

$= > pi \: \times r ^{2} \times h$

□ Curved surface area of cylinder

$= > 2 \times pi \times r \times h$

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Values Given :

Volume = 160 × pi × cm^3

Radius = 5cm

Height = ?

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ᴠᴏʟᴜᴍᴇ ᴏғ ᴀ ᴄʏʟɪɴᴅᴇʀ = 160pi cm^3

$pi \times r ^{2} h = 160 \times pi \times cm ^{3}$

$pi \times (5) ^{2} \times h = 160 \times picm ^{3}$

$h = \frac{32}{5} cm$

• ᴄᴜʀᴠᴇᴅ sᴜʀғᴀᴄᴇ ᴀʀᴇᴀ ᴏғ ᴀ ᴄʏʟɪɴᴅᴇʀ = 2 . pi . r. h

$2 \times pi \times r \times h = 2 \times pi \times 5 \times \frac{32}{5}$

On solving 5 will get cancelled:

ᴄᴜʀᴠᴇᴅ sᴜʀғᴀᴄᴇ ᴀʀᴇᴀ :

64pi cm^2

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_______________________<<<Tʜᴀɴᴋʏᴏᴜ Dᴇᴀʀ ❤

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